Air purifying and circulating device



De- 1, 1942. G. s. |:uJ|=Hn-us:E` 2,303,333

AIR PURIFYING AND CIRCULATING DEVICE Filed Feb. 19, 1940 Sheets-Sheet lAno/mns Dec. 1, 1942.

G. s. DAUPHINEE AIR PURIFYING AND CIRCULATING DEVICE Filed Feb. 19, 1940a sheets-Sheet 2 y INVENTOR George 5. mam/ee @@wm ATTORNEYS Patented;Dec. L1, 1942 "Afm omoULA'rrNG nrivlv'cr.

George S. `Illaul'ahinec, Brooklyn,` N;assinior` l W.` B. Connor-Engineering CornfNcw York. l `1 N.Y acorporationiofNewrYork l 9,1940,seriiii1510319508,

Appllcationtllebrnary `1 'z fclaims. (cursa- Jomvf'ennon rentes 'tofairpurifying and circulating .de vice'as,` and" more particularly to adevice. adapted toremove odor-.ous impurities from the vair .of a room.

A device. of this characteris useful in a variety capacity at ,-freeflaw, yWhile prvidinL a large; measureoi air purification and 4withal tooperate within vtheLnoiselimitations established for fan devicesindomestic service.` The invention is not oi' situations..` It 'canbe usedto advantage:finay hospital ro'om, for example, to rid the room-'oftheodor. o!` disinfectants.v and other unpleasant odors., Itis useful'for householdservice, "particularly' forgconiinin'g and adsmbing4cooking odors..in the kitchen, without pennittin'gfsuch odorsy to`spread 'toother rooms of thehouse or apartment..

It is `anfixnportant object of the present -in`- vention.` to provide' adevice which'v willi function witha Ahigh. degree or effectiveness 'asan Vodor adsorberl simultaneously as 'an eective air circulating;device. The. aircirc'ulating if ction of the device is tionandindependently thereof@` If ythe .room is closed or substantially closed,it

useful both' in aid ofthe. odor -a rbing funcis desirable that the. aircirculationextend to -all portions of the .room so'asto that thebenefits ofodor adsorption will' reh the entire also. that .the airtaken inby the device f and. treatedi'or odors shall be air" whichcontains the, odoro'us impurities in a concentration which is ai;Vleastas gre'atas the average'concentration ofsuch. impurities intheroom. The circulation of the. closed rooms which' are `either heatedf' or'airyconditionedl also contributes tothe comfortaand health ofjtheoccupants independently ofiodor adsorption;

The odor adsorbing function of the device is ditions are such as torequire the windows to be kept closed.. orv substantially closed; alsoV`in air `conditioned,rooms,` apartments: "or other, occupied enclosures.where, for` reasons o'f economy'," the admissionoi fresh outside airisrestricted.l The aircirculatory functionoi the' device haspartlcularutility.. inf maintaining air movementor l :irculation inheated orvotherwise air conditioned enclosures.k During hot humid weatherf'airmovement ,or circulation is greatlyjappreciated in` occupiedrenclosureswhich 'are' notair conditioned. A further'objectof thisinvention isftoprovide air purifying. and circulating device,one"`prefyerably wherein a popular. simple circulating pro-h pellerv fanlmaybeisatisfactcrily employed in coxn-V bination with.. an odoradsorbent means soV 'constructed in, relation to its'permeabilit'y toair'ow therethrough as notseridusly 'to reduce the circulatory capacityotsucha type of fan; below its n ot particular utility when externalweather co`nf connected to oneanotherfbythree equally spaced confined tothe utilizationcf/ this particular type ofan, -i 'f n Furthergobjects`ofthe invention have to do with,r the provisionot a.- device ofA thegeneral character. stated which is compact andsimplein constructionyeconomical to 'rnanufacture, and

sturdy-and eiiicient in-. use. A Y' Other objects and advantages lwillhereinafter a'ppear.f" f Y. .l` f' In the drawings forming part ci `thisspecication: W

Fig.'v 4l: is a sectional' view in side elevation of an air purifyingandcirculating device embody,- ing features'of theinvention;` 1 l. 2 isasectional viewtaken upon the li'ne 2-f-'2of i Fig." lflooking.y in; thedirection of n the fa'rrowsy' Y f i Fig'.3lis-asectional.viewrtakenupongthe line 3-3 of Fig: I,'1looking in thedirection ofthe arrows before the adsorbent have been. put into place,Jthe 1 adsorbent units being indicated, nevertheless, in dot andydashlines;-y

Figni is a vdiagrammaticview on alarger scale than' the other. -iigures,illustrating substantially `therelativesize andfspacing of a series o'fVthe adsorbent `units vemployed in.; the purifying and fcirculatingdevice,..thefspacing lbeing provided by ftlierod'caps whicha4 notshown:V v

view ithroug'h" Fig.- 5 is atransverse, :sectional oneoftheadsorbent-units; and'.

' f Fig. 6 isa -fragmentary;viewin sectionall ele-- vation illustratingamodiiication,

' fThede'vicecompriseslend' members I 4and 2, f which will'be 'describedin'. greater detail herein-y -aitenhutV which,.for the present,may'simply be referred to as generally circular in form andastie-rods`3. Eachatie-rodvS is threaded at one end into afbo'ssv I ofVtheend member 2, and passes at` its other'end'v throughan-inward1yreaching socket boss 5 ofthe otherend memberv Each{"tie-rodfhas va reduced,v .threaded end portion 6, A forpassing throughacylindrical bore l oione 'f of the spp'ortingfbosss 5. Ashoulder isformed iat the junctionof the reduced end portionv 6 of -fthef'tie-rodS'Witli' the portionfof thetie-rod which --isof v'normal diameter, andthis 'shoulder abuts thel right-hand'fa'c'e' of the supporting boss 5."A nut 8,`threaded'on to-the reducedthreaded end fici `eachfti'eerod,clamps. the tie-rod to the supportin'gbosslwl motor vibration. AA

under suitable pressure.

a ren meters is mounted in e hub io of a 2,sos,ssa

motor supporting-spider I l and is held therein by rubber washers Itrubber ring-II is within the boss Il and around the tie-rod l, and

washer Il provides a cushion -'between the boss Il and theboss 5.

a' pin Il. The collar is nxed to the tie-rod l by tie-rod l that-the re-Il is so'positioned upon the silientvibration damping includes a Themotor v shaft 2l. upon which a fan 2i of the axial discharge type isailixed. 'By afan ofthe `axial discharge type is meantfa fan whichthrows the airink thegeneral direction `of distinguished the axis ofrotation of .the fan,as l irom one which throws Vthe ai`r,radiallyoutward.l

The end member '5I is formedas athroat'or a nozzle which closelysurrounds therfan. This throat converges-asv itapproaches the r ian fromthe intake side ofthe fan, and terminates in an end portionofcylindrical-contonr, vItis coaxial with the fan andthe fan motorfandis of the long throw typerbeing designedto enable the roomso" that anytendency to permit stagnant pockets of airtopersistisminimized.Thethroat or Anozzle of the end member I is covered by the usualprotective wire guard or grille 22.

material maintained' ian to` project the air to remote' portions of a.

p The washer I1 provides a cushion between the boss I4 anda collarIhwhichl erally similar to that' described, butinv stead )of providingfor a intake of-.air

The end members I and i: are formed-with con,-

fronting.' registering; circular channels 23 and 24.

The channel has a'side opening 25 attlie`l upper, outer side thereon-gilclosure plate 2l is removably secured in place by means ofscrews 21 forthe purpose oi normally closing the .opening. rRod-like odor adsorbentunits 2l, 4which,

may be generally similar to those disclosed in my pending applicationSerial No. 267,651, filed April yare suppo ing 25 and a removableclosure means therefor, iny order to enable the last of the units to beinserted.

The end member 2 is formed with a series of large air admissionopenings, disposed at equal intervals about the axis of the chamber. Thecircularvalve or damper plate 83 is mounted upon an axially disposedstud 34.' which projects outwardly from the end memberl. The valve ordampernisrormedvvitnaseriesotlarsaeoulll!retainingthedamperinplace,andascrew passed through the washer andthreadedinto bore Il ofthestudll. y

fylnleilect. Opening the'damperlt iiow of air to thefan and permits itto operate at substantially itsy f'ull free volumetric eillciency',thereby increasing thslcirculato .eifect' at fa small sacrifice inpurifying effect.

The end ,members'i ena z ,m reines-vini supporting feet II' and l2.respectively. in" the mum-ated embodiment ,or the invention. whenequipped witntnese reet. the device is adeptes to be employed with itsaxis extending nemen;l

tally-as illustrated in Fig. 1. It is also contentplated, however. toemploy this devicewitli'ita axis in a vertical position. In this lattercase the feet 4I and l2 can be omitted and suitable.v obvious meansl'forsupport provided'.4 Y The construction illustratedin Figure o am@through thev endo! the remote from the fan, that end roi the casingispermanently closed.

The construction isin all respects the-same as" that of the embodimentof figures 1 to 'subjed tothe ex ptions'noted below.` The tie-rods ikber 2a, the tie-rods being threaded i'ntothe bosses as. 'nie end memberis is ionized with vil einen; I channel 24a having an opening at thetop, which opening isr closed by a removable closure plata fue. The c'24s nocives the righteh'and'- 13, 1939, for Air conditioning devices.are set with their left-hand and `:right-bland endsv lodged respectivelyin the channels 2land 2l, these units,` I together withthe endmembers Iand 2, consti-f tutin'g a cage which deilnes a cylindrical' chamber atthe intake side of the fan, coaxial vviriili the an. through which airmust pass in order to reach e fan.

geen er tnefunitnseonsiste or a thin-wenen, Y

perforate metallic tube 2l', vwhich-.is vfilled with granular activatedcarbon 2l. The ends of each tube areclosed 4by' a thin-walled cap Ilhaving a narrow iiange disposed in surrounding relation of theassociated end of the tube. -The flanged wall is made verythin inorderto minimize the spacing of the tube walls from one another, so

that there will not be an excessive or objection-'- Y' able free airspace'intervening between adiacentadsorbent units. Most of the units canbe put in renne, en extremeivyeempaet and pueden-mit ends oi odoradsorbent units 28a.` A cover plate. "is secured to the end membsr'2a bymean oil screws 41. Thecover member 4l completely and permanently closesthe end 'of the `Either device. as illustrated and described',

which is adapted@ function 'itil high am;

either for odor adsorption, or for air circulation* purposes, or both.It has further merit that the motor and the fan are protected againstyiniury and are substantially concealedffrom place in the opposedchannels and 2 4 simply l by tilting them'fand then workingtheir endsinto -f the channels. The units 2 2 are intended to extend completelyaround the circular channels andv f ze, and hence it is necessary toprovide the open- 75 the cage. The dem V as a wholeis'not-only nasful,but is or at tiveappearancebecause-'ot its symmetrical and gracefulconstruction.

' becausev all unsightlyparts from view. ,f

` nieve described what r believe to be trieben embodiments of myinvention. I do not wish,

however.' to be confinedto the embodiments shown, but vwhat I desire tocover by 4Letters Paltenliiset forth in, the` appendI ed claims' c v l.An air purifying and device comin sock'etbosses yIl of an end meine'`n,s'os,sss 'prising, in combination,- a fan of the axial dis.

charge type substantially free from obstruction -at the discharge sidethereof, a frame surrounding the fan and including an unobstructed, longthrow, air guiding throat, air-pervious odor ad# sorbent means vmountedin saidframe and denn'- ing with the frame a' chamber'at the intake sideof the fan through the said air-pervious means of which a substantialportion of the air ilows cage-like chamber disposed tok draw air intothe chamber through, around and between said airpervious bars formingsaid wall and to discharge Y said air unobstructedly from the chamberthrough thesaid open end member; the spacing and transverse dimensionsof said bars being so related to one another that -a predetermined,substantial portion-of the air to the fan will flow directly throughsaid porous bars and ya portion will ilowthrough the chinks provided bysaid spacing.

6. Anair purifying and circulatingdevice comprising. in combination, anopen end member formed to provide an unobstructed, long throw,l

air guiding throat, a second end member remote therefrom, meansconnecting said end members in coaxial and spaced relation, a set ofair-perwhich the fan is mounted, a cage defining a subvstantiallycylindrical chamberat the .intake side of the fanl through theperipheral wall of which airfiowsinward to the fan, said cage comprisingconnected end members and spaced air-pervious, odor adsorbent umtsmounted in the end members to define the peripheral wall of the cage,tie-rods that extend between and unite and space the end members, andmotor supporting means mounted on said tie-rods. i

a. An air purifying and eircuiat'ing device comprising, in combination.a' fan of the axial discharge type, ,a fan motor having a shaft uponwhich the fan is mounted, a cage defining a sub-1 stantially cylindricalchamber at the intake side of the fan through the peripheral wallofwhich -air ows inward to the fan, said cage comprising connected endmembers .and elongated, air-perlvious odor adsorbent units mounted toextend in parallel relation between the end members to deilne theperipheral wall of the cage, and means supporting the fan motor withinthe cage in covious bars to bridge the space betweenthe said;

end members and thereby to denne the peripheral wall of a cage-likechamber; la motor driven Vfan unit mounted inside said cage-like chamberdisposed to draw the` air into the chamber through. around and betweenthe porous bars forming said wall, and to discharge said airunobstructedly' from the chamber through the throat of said open endmember; said bars being disposed in such spaced relation to`one anotherl that a substantial portion of the air owing through the peripheralwall will flow through`- said air-pervious bars and a portion will ilowthrough the chinks provided by said spacing, and damper means associatedwith the second ofthe end members and adiustableto regulate admission.of air to the chamber through said end member.

. 7. A combined air purifying, circulating, and

, mixing device comprising a basket-like enclosure axial relation withthe cage, comprising tie-rods that extend betweenv and unite the endmembers, and a spider support for themotor mounted on said tie-rods,said spider including a ring for receiving the motor, and means forsecuringthe motor xedly to the ring.

4. In an air purifying and circulating'device which includes a fan ofthe axial discharge type,

a cage defining a chamber through the periph- I eralwall of which airflows-inward to the fan,

said cage comprisingend members rigidly connected together at a fixeddistancefrom one another, said end members being formed with adsorbentbars having their opposite ends set in the respective channels fordefining the peripheral wall of the cage.

5. An air purifying and circulating device comprising, in combination,an open end member. a

closedend member, means'connecting said'end members in coaxial andspaced relation, a set `of spaced, parallel, air-pervious bars bridgingl and thearea of said air inlet opening being soV 'confronting channels,and spaced, air-pervious related that a predetermined portion of thesaid having an open end member so formed a's to provide a smooth,unobstructed, and well rounded air discharge nozzle at one vend of saidenclosure, a closure member at the opposite end'of the en' closure, saidmember provided with a' free air inlet opening of limited area, aperipheral wall of airpermeable construction composed of gas adsorbingmaterial to complete said enclosirfe, a

fan unit mounted within vthe enclosure in alignment with said open endmember and in position simultaneously to draw air inwardly through saidperipheral air permeable wall and through said free air inlet opening,and to discharge it outwardly through said nozzle in the form of a highA velocity iet, the area of said air permeable wall drawn air will becaused to iiow through said wall in an amount sufcient to satisfy apredetermined requirement as to the removal of gaseous impurities, and apredetermined portion will be caused to flow through the air inletopening, suilicientV to augment in predetermined measure the airdischarge stream, thereby to'satisfy the desired circulatory and mixingeect suitable for the size or extent of the room or space served;

Gronau s. maremma.

